One of the coolest things about repl.it is how fast and simple it is to experiment with others' code. I've been working on a chrome extension which allows you to run code all over the web on repl.it, with just one click.

The chrome extension adds prompts to NPM Packages and Github Gists - letting you try out examples as soon as you see them.

But, that's not all! The chrome extension lets you run literally everything on repl.it!